Windmill
Windmill is dismantling the paywall between itself and the data stack
A side-by-side editorial comparison of ESPHome and ToolJet — release velocity, themes, recent moves, and the top alternatives to consider.
ESPHome's August beta opens while the July line keeps absorbing hardware fixes.
ESPHome runs a monthly train and this window covers the tail of 2026.7 plus the opening of the 2026.8 beta. The 2026.7 patches were dominated by field-reported hardware corrections — sensor readings on emc2101, haier and as3935, an ENC28J60 SPI chip-select hold time flagged as breaking, a locked git clone cache so device adoption stops failing on first attempt, and a double-free when the API overflow buffer drain is re-entered. Bundled device-builder and dependabot bumps make up most of the row count in every patch.
Two trains, one pattern: the LTS line gets hardening, the beta line gets the AI connectors.
ToolJet runs two parallel release lines and the split is stark. The 3.20 LTS train has spent the last week on security and stability — a full critical/high CVE sweep from container scanning, LDAP fixes, module repairs — with its one feature being global certificate support across data source connections plus automated RDS SSL setup. The 3.21 beta train carries the actual product work: datasource tagging and mentions, HubSpot, ServiceNow and QuickBooks AI integrations, link and password expiry controls, and group-based user filtering endpoints.
ESPHome runs a monthly train and this window covers the tail of 2026.7 plus the opening of the 2026.8 beta. The 2026.7 patches were dominated by field-reported hardware corrections — sensor readings on emc2101, haier and as3935, an ENC28J60 SPI chip-select hold time flagged as breaking, a locked git clone cache so device adoption stops failing on first attempt, and a double-free when the API overflow buffer drain is re-entered. Bundled device-builder and dependabot bumps make up most of the row count in every patch.
The pattern is stable and worth reading as maturity rather than stagnation: a feature release lands, then three or four patch releases correct the hardware paths that only fail in the field, each one narrow and attributed to a specific board or component. Concurrency and shared-state bugs — the WiFi scan results shared with the captive portal task, the clone cache, the buffer drain — recur often enough to look like the project's current soft spot. The beta tags carry no notes of their own and point at the release changelog instead.
2026.8.0 should reach a stable tag within days given the beta cadence, followed by the usual run of patch releases correcting per-component regressions. What is in it is not visible from these entries, which link out rather than summarize.
ToolJet runs two parallel release lines and the split is stark. The 3.20 LTS train has spent the last week on security and stability — a full critical/high CVE sweep from container scanning, LDAP fixes, module repairs — with its one feature being global certificate support across data source connections plus automated RDS SSL setup. The 3.21 beta train carries the actual product work: datasource tagging and mentions, HubSpot, ServiceNow and QuickBooks AI integrations, link and password expiry controls, and group-based user filtering endpoints.
Enterprise deployment concerns are driving the LTS line — certificates, SSL automation, LDAP, CVE response and credential expiry are the recurring subjects, which is what a self-hosted internal-tools platform ships when it is selling into regulated estates. The beta line points at AI-assisted connectors to major SaaS systems, extending the AI features beyond app building into the data sources themselves. Expect the beta connector work to land in LTS once the 3.21 line stabilizes.
The AI integration list should keep growing along the same axis — CRM, ITSM, and finance systems — and the global certificate work suggests further connection-level security controls in the LTS train. A 3.21 LTS promotion is the next structural milestone.
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either ESPHome or ToolJet.
Windmill is dismantling the paywall between itself and the data stack
Resend is wiring itself into every agent runtime it can reach, one standard at a time
vdiffr finished its job in 2021 and has been tracking compilers ever since.
The deployment client is being rebuilt around credentials it never has to store.
A package whose release calendar is written by whoever ships the next Rtools.
DNSControl v5 is feature complete and counting down to an August ship date
See all ESPHome alternatives → · See all ToolJet alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. ESPHome and ToolJet are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ESPHome and ToolJet are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
Top ESPHome alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "ESPHome alternatives" section above for the current picks, or visit /alternatives/esphome for the full list with editorial commentary on each.
Top ToolJet alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "ToolJet alternatives" section above for the current picks, or visit /alternatives/tooljet for the full list with editorial commentary on each.